Celluloid compound



Patented May 14, 1929.

UNITED STATES PATENT OFFICE.

RUDOLF ROLAND, OF JACKSON HEIGHTS, NEW YORK, ASSIGNOR T ROLAND FIRE- PROOF CELLULOID CORPORATION, OF FLUSHING, NEW YORK, A CORPORATION OF NEW YORK.

' CELLULOID COMPOUND.

No Drawing.

This invention provides a compound or composition which in the industrial arts is susceptible for all uses for which celluloid is adapted but which is non-inflammable and free from fire hazard; and which will not dry out and become brittle upon exposure to the atmosphere.

In preparing one hundred pounds of the compound or composition the following in-= gredients are employed in about the proportions stated, that is:

4 Pounds.

Acetyl cellulose 25 Alcohol (methyl or ethyl) 25 Chlorbenzol 1'0 Tetrachlorethane 10 Benzyl benzoate 10 Triacetine '10 Dichlorhydrin 10 The constituents are placed in a suitable container and heated to approximately 75 degrees centigrade and stirred until the acetyl cellulose is dissolved andthe mass becomes of a viscous consistency. The viscous mass is subjectedto an evaporating process to eliminate an excess of fluid and reduce it to a plastic or workable condition for molding and pressing into the required shape. Pigments or coloring matter of any kind may be added "to the viscous or plastic mass according to the desired appearance of the finished article.

Articles formed from the compound or composition are non-inflammable and will retain their elasticity and toughness for an indefinite period. Moreover, sheets of the Application filed March 2, 1928. Serial No. 258,695.

enzoate'ten pounds, triacetine ten and dichlorhydrin ten pounds.

3. The method of preparing a. composition of the nature s ecified which consists in placing acetyl ce lulose, alcohol, chlorbenzol, tetrachlorethane, benzyl benzoate, triacetine and dichlorhydrin in a container which is heated to about seventy-five degrees centi grade, then stirring the mass until the acetyl cellulose is dissolved and the mixture assumes a viscous consistency, and then subjecting the viscous mass to an evaporating process until it becomes plastic.

In testimony whereof I aflix my signature.

RUDOLF ROLAND. 1. s.]

windows in curtains and vehicle orbenzol ten -pounds, tetrachloret ane ten pounds, benzyl pounds, 

